lì gān jiàn yǐng

ㄌㄧˋ ㄍㄢㄐㄧㄢˋ ㄧㄥˇ

Idiom

1(lit.) set up a pole and immediately see its shadow (idiom)

2(fig.) to get instant results

wǒ我xǐ huan喜欢zhè ge这个gōng zuò工作yīn wèi因为tā它lì gān jiàn yǐng立竿见影，ràng让rén人hěn很yǒu chéng有成jiù就gǎn感。

我喜欢这个工作因为它立竿见影，让人很有成就感。

I like this work because you see the result immediately; it's very rewarding.

立竿见影。

The shadow of the stick is visible.